Typewriting and accounting



March 13, 1945. Q 1 SUNDSTRAND I 2,371,558

TYPEWRITING AND ACCOUNTING MACHINE OSCAR J- SUNDSTRAND ATTO R N EY March 13, 1945- o. J. SUNDSTRAND 2,371,558

' TYPEWRITING AND ACCOUNTING' MACHINE Filed June 29, 1940 s sheets-sheet 2 /96 /set INVENTOR OSCAR J. SUNDST/PA/VD March 13, 1945- o. J. SUNDSTRAND 2,371,558

, TYPEWRITING AND ACCOUNTING MACHINE Filed June 29, 1940 5 Sheets-Sheet 3 {k/ IINVENTOR l lf /92 oscAR./..su-osr/2AND ifa) V90 I BY A ORNEY 4 Patented Mai. 13, 1945 TY PEWRITIN G AND ACCOUNTING MACHINE Oscar J. Sundstrand, West Hartford, Conn., as-

signer to Underwood Elliott Fisher Company, New York, N. Y., a corporation of Delaware` Application June 29, 1940, Serial No. 343,232

(Cl. 23S-130) This invention relates tov accounting machines 4 Claims.

and to combined typewriting and accounting machines of the classes in which numbers are entered digit by digit in a register. The invention is illustrated in this application as embodied in a typewriting and accounting machine of the mechanisms of the registers which are relatively movable to transfer the driving or operating mechanism from denomination to denomination of the register.

In machines of this class, it is often desirable to lock all of the differential actuating mechanisms except a predetermined one of said mech.

anisms out of operation when the mechanism for driving the totalizer wheels of the register 'is in a predetermined denominational position with relation to the register. For example, in an English money machine, when the driving mechanism is in tens of shillings position with relation to the register, it is desirable to lock all the differential actuating mechanisms out of operation except that for the numeral 1J since this is the only number which can properly be entered in the register with the operating mechanism in this position. The entry of any other number in the register, with the parts in this relative position, will result in a misoperation.

One object of the present invention is to provide machines of the character above described mechanisms except that for the numeral 1 from operation when the totalizer Wheel operating mechanism is in tens of shillings position with relation to a register.

with a novel and improved mechanism for lock- With the above objects` in view, the invention consists in a machine embodying the novel and improved features, constructions and combinations of parts hereinafter described and particularly pointed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the'art.

The present machine 'is provided with power operated mechanism for driving the diiferential mechanisms to operate the totalizer wheels of the registers to enter numbers in the same, and the invention is illustrated as applied to such a machine.

The various features of the invention will be clearly understood from the accompanying drawings illustrating a machine embodying the invention in its preferred form and the following detailed description' of the construction therein shown.

In the drawingsi i Fig. 1 is a View in vertical section of the machine and illustrating particularly the type bar operating mechanism and the mechanism for operating the registers or totalizers to enter the numbers from "3 to "1 inclusive, therein,

Fig. 2 is a detail perspective view illustrating particularly the locking mechanism for locking the differential actuators out of operation and the means for controlling the same,

Fig. 3 is a detail view in front elevation illustrating one of the column registers and one of the cooperating parts illustrated in Fig. 2,

Fig. 4 is a detail sectional view illustrating particularly certain parts of the space bar mechanism and the power means for operating the same,

Fig. 5 is a detail view in vertical section illustrating certain parts of the locking mechanism,

Fig. 6 is a detail plan view illustrating particularly the locking mechanism, the means for actuating and controlling the same and certain associated parts,

Fig. 7 is a view similar to Fig. 6 illustrating certain of the parts in diiferent positions,

Fig. 8 is a view partly in side elevation and partly in vertical section illustrating the locking mechanism for locking the differential actuators out of operation, the state control lever and the connections for lcontrolling the action of the locking mechanism lfrom said lever,

Fig. 9 is a View similar to Fig. 8 illustrating certain of the parts in diierent positions, and

Fig. l0 is a view similar to Figs. 8 and 9, of a portion of the mechanisms shown in said iigures,

positions.

ar line.

trated and described in applicants application" Serial No. 281,772, filed June 29,1939.y Thedifferential mechanism, however, is constructedt'o" enter amounts in English money in the register or registers.

In the illustrated constructionrth'e machine' comprises a platen frame provided'with side rails or bars 2 connected together?inspac'efl` relation by cross bars (not shown) and a substantially at platen 4 mounted fo-r vertical movement in said frame;` Upon thel side: railsv of. the` platen fra'm'ef is",v supported?A a; liney space: framef movable forwardly. andrearrwardlyon. tracks formed. upon* thie'up'perM edges offsaidmails toline-space'thetypo carriage with relationi to" the" platen. The? line space frame comprisessidev brackets. orbars', one 'of'- whichisindicated ati 6 connected lby fro-nti and rear rails;` of whichl therear railA is: indicated at 8 Upon! the: line space' frame-is supported' af type carriage or-headindic'atedas'aawhole at IDupon which are mounted the usual series of type-bars, each' carryingone orniore types foriengaging' the wo'rk; sheets; supportedAv onv the platen. The* type barsare arranged to be:I operated bypower' driven mechanism in the: present' machine: and this m'echanism'f is in part carried. byL thecarriage. The carriage also carries the usual series ofi-keys forming the keyboard of thefmachine and: controlling the? coaction4 ofthe",y bars with the powerf'driven mechanism. 'IYhecarri'age-also carries a' master wheellby whichtheizotalizer` wheels of" the registers are- 'driven and` mechanism for driving themaster wheel differentially by' power tof set' up' or' enter` successivelyvl the various digits of` a number step-by step-i'nth'e register.l

The typef` carriage is mounted?. for' movement forwardly and' rearwardly' with' the line` space frame and' i s' also: mounted? for lateral4 movement onI saidy frame inv a right Inland' d'irectiorr` to'letter space duringr a typing operation and for return movement in ai left hand) direction tor-estore the carriage.l to position for starting they typing of The carriage is:v provided with front and rear wheels or rollers arranged to engage respectively theA front and rear rail'sof" the.v line space frame'.` One'- of the reai'fr'ollersis indicated ait Il inl Fig.. l, The carriage4 is acted? upon` by the usual' metallic' ban'd having one end. attached.` to the carriage and' connected with the usual spring drum which tends yieldingly to move the carriage constantly in. a right hand direction along the rails of' the'y line space frame. These elemients are not shown in this application but' are intermediate lever comprises a longitudinally movable transmitting link 20, a radius arm 2|, a longitudinally movable driving link 22, a pawl 23 movably mounted on said driving link and a continuously rotating toothed or fluted shaft 24 arranged to `loe engaged by said pawl. The driving link is swung: laterally to engage theipawl with the Iluted shaft by means of a drag link 26 connected with a key lever 28.

Fig. 4 of the drawings shows particularly the spacing mechanism controlled by the space bar which will be hereinafter referred to as the space bar mechanism. This space bar mechanism has substantially thel same construction, arrangement and mode ofoperation of parts as the corresponding mechanism shown and described in applicants Ratent;No. 2,239,023, dated April 22, 1941.. In Fig. 4, the parts of the mechanism for producing and controlling the spacing action by power. corresponding; toi the: type :bar mechanisms are 'indicated by corresponding reference, numeralswiththeladditionof at As. shown in Figj..4, theilevert' 2'8icorresponding toy the. lever. 28 .of the numeral: and alphabetmechanisms, is connected by'a link- .29:with the yoke-shaped spacebar lever 3 I which is fixed to the shaft 33, .and the space-bar 35 is attachedI to the forward ends-.of the two spaced arms'of this lever; To the-shaft 33 isalso fixed-an arm 31 to-which-is connecteda spring 3i!v 'for restoring the parts.` to normal positions after theY depression and releaserofl the space bar.

The machine illustratedris provided with a register 30. mounted at the. rear of. the machine upon` a register bar 32' andl provided with, totalizer` wheels 311.y

The typeA carriage isl provided with power drivenl mechanism for actuating` they totalizer wheels of the column register toset up num-bers inzsaid wheels, Thismechanismiscontrolled by the numeral keys of the typewriter keyboard. This mechanism comprises; a master wheel 35 located at abo-utrthe'mid'dlef ofthe-type carriage at` thel rear thereof and extending. rearwardly from the carriage into position. to engage the lowest-setvof wheels of the totalizer mechanism.

The master wheel is fixed to a shaft journaled in the-carriage and is connected by suitable gearing with the main differential actuator` shaft 38 extending across-the type carriageand r,joumaled in suitable bear-ings supported on the frame of the carriage.

The shaft 38 is rotated diierentially to impart differentialmovements to the master Wheel 36 andv to the totalizer wheels of a register to enter thevdesired numbers in the register by differential mechanisms selectively controlled from the several numeral keys ofthe type bar mechanisms. These differential mechanisms are selectively thrown into operation by the corresponding numeral type bar actuating mechanisms respectively. The said differential mechanisms have substantially the same construction, arrangement and mode of operation. as the corresponding mechanisms sho-wn. and described in applicants pending application, Serial No. 28l,'7"12,V The several. mechanisms for differentially rotating the shaft under control of the numeral keys for the numbers from 3 to 11 inclusive, to enter corresponding numbers in the registery all have the same general construction, arrangement and mode of operation of parts, these mechanisms differing only in the respects hereinafter pointed out to vary the rotative movement impar-ted to the` shaft. y

Each of these mechanisms (see Fig. 1) comprises a longitudinally movable rack bar 40, pivotally suspended at 42 on an arm 44 which ispivoted on a shaft 46 extending across the type carriage. These arms are acted upon by a bail 48 also pivoted on said shaft and normally held gear being inclined in a clockwise direction, Fig. 1.'

The shaft 38 is connected with the master wheel 36 to drive the same by suitable gearing such as the gears 63 and 65. Each of the rack bar s is also provided on its forward side with a series of downwardly inclined teeth arranged to engage the teeth of a continuously rotating power driven toothed or iiuted shaft 64 extending across the type carriage and journaled in bearings carried by the side plates 56.

Each of the rack bars is normally held in a position intermediate between the shaft 64 and the corresponding gear 62 as shown in Fig. 1 in which it is disengaged fro-m both shaft and gear. The mechanism for holding each rack in this position comprises a pin 66 secured in the bar adjacent the lower end thereof and engaging in a recess in a lever 68 pivoted at l0 on an upright supporting plate or bracket 12 secured to the cover plate 14. This lever is acted upon by "a coil spring 16 which tends to swing the lever upwardly and yieldingly holds the pin engaged in vthe recess with the pin in contact or substantially in contact with the lower edge of a. fixed cam plate T8 attached to the upright plate 12. n In order to throw into operation the differential mechanism for entering a given digit in the totalizer wheels of a registenvthe rack bar 40 corresponding to this digit is swung forwardly to engage the teeth on the forward side of the rack bar with the teeth of the continuously rotating shaft 64. By the engagement of the rack bar with the shaft, the rack bar is moved longitudinally upward and the corresponding arm 44 and the bail 48 are swung upwardly by the movement of the rack bar against the actio-n of the spring U. When the rack bar has been moved upward the distance required for the subsequent action thereof, it is swung rearwardly to disengage the teeth on the forward side thereof from the shaft 84, this movement being limited to prevent the engagement of the teeth on the rear side thereof at this time with the gear 62. The rack bar is then moved longitudinally downward by the action of the bail 48 to a constant position, which is substantially the same for all of the several bars. At a predetermined point-in the downward movement of the rack bar, the bar .is swung farther to the .rear to engage the teeth on the rear side of the bar with the gear 62, and, during the continued downward movement of the bar, the gear is rotated to actuate the totalizer wheels to enter the corresponding digit in the register.

The several mechanisms for swinging the rack bars forwardly to engage said bars selectively7 with the continuously rotating shaft 64 are operated from the several corresponding intermediate levers I4 connected with the numeral tyoe bars as these levers are moved downward respectively to actuate the type bars corresponding to the numeral keys. These mechanisms, however, are rendered operative only when thev master wheel 36 is in position to engage and actuate one of the Wheels of the totalizer mechanism of a register. The position of the type carriage when the master wheel is in position to operate the totalizer wheels of a register, will be, in certain instances, hereinafter referred to as the position of the carriage, when in the zone of a register.

The mechanism for swinging each of the rack bars forwardly comprises a lever (one for each rack bar) pivotally suspended at 82 upon an arm 84 secured to a rock shaft 86 extending across the type carriage and supported in bearings in the end plates thereof. The lever 88 projects at`its lower end through a guide slot in the cover plate 'I4 and is formed on its left hand side with a projection 88 arranged to engage the pin 66. The rock shaft 86 is acted upon by a coil -spring attached to an arm on said shaft (not shown) which normally maintains the arm 84 and the lever 88 in lowered position with the projection 88 below the pin 66. The lever 80 is connected by a link 84 with a plate fixed to theupper end of an arm 96 secured to one of the intermediate levers |4.

The levers 8D, when the carriage is not in the zone of a register, occupy their lowered positions as shown in Fig. l. The machine is provided with the usual state control device and register engaging cam mechanism for contro-lling the actuation of the totalizer wheels of a register from the differential mechanism when in the zone of a register, both of which are shown and described in applicants application Serial No. 281,772, With the state control device adjusted in write or total positions, the levers 8U will occupy their normal lowered positions, when the carriage is in the zone of a register. With the state control device adjusted in compute position, when the carriage is in the zone of a register, the levers 80 assume elevated positions to locate the projections 88 opposite the pins 66.

With this construction, when the lever I4 of a numeral type bar mechanism is swung downwardly to actuate the type bar, the corresponding lever 80 is swung forwardly through its connection with the arm this time, in lowered position, the projection 88 thereon will not engage the pin 66 and this movement of the lever 8D will not affect the position of the rack bar. However, if the lever 8U is then in elevated position, the projection 88 on the lever will engage the pin 66 on the rack bar, as said lever is swung forwardly, and the rack bar will be swung forwardly therewith to engage the same with the continuously rotating shaft 64.

When the rack bar is engaged with the vshaft 64, the bar is moved upwardly by the action of the shaft for the distance required for its subsequent action and is then swung rearwardly to disengage the same from the shaft by means of a pin 98 projecting downwardly from a supporting plate |00 secured to the frame of the carriage, which pin engages a laterally projecting arm |02 on the rack bar.

During the lateral swinging movement of the rack bar forwardly to engage the same with the shaft 64, the pin 66 travels along the lower edge of the fixed cam plate 'i8 and then passes beyond said edge to locate the same forwardly of the plate, The upward movement of the rack bar produced by its engagement with the shaft 64 then carries the pin in front of the cam plate. During the upward movement of the rack bar, the pin travels along the forward edge of the cam 96. If the lever 88 is, at

plate. which is shaped; as shown in Fig. 1 and tends to guide the lower end of the rack bar and prevent it from disengaging the continuously rotatingv shaft. A's the rack bar approaches the upper end o f its movement, the upward movement of the rack carries the pin 66 beyond theupper end of the cam plate so that the pin leavesv the forward edge of the cam plate and the rack. bar is free to swing rearwardly. As the rack bar is swung rearwardly by the action of the pin 98 the pin 66 engages the forward side of a fixed. guide plate |04 secured to the upright supporting' plate 'l2 above the cam plate 18 and arranged toI leave a crossover orY channel |06 between the lower edgev of the same and the upper edge of said c am plate. This plate |04 limits the reareward movement or the rack bar to prevent, atthat time in the cycle,.the engagement of the rack with the gear 62', and forms a guide for the lower end thereof during the iirst part of the downward movement of the bar.

During the rst part of the downward move-y ment of the rack bar, under the action of the bail 48.-,"the pin 6.6 moves along the forward side of' the guide plate |04 until it reaches the channel.

IDS, the rack bar then being disengaged from the gear- `62'. As the pin reaches the channel, which occurs at a predetermined point in the downward movement of the rack bar, said pin is directed.

into said channel by the cam plate 18 which p ro :5

jects to the lef-t some distance beyond the guideplate |04 as shown in Fig. 1. The channel |06 is inclined'downwardlyf and to the right (Fig. 1) and, during the passage of the pin 66 through the same, the rack bar is swung rearwardly by the action of the cam plate 18, thereby engaging the rack bar with the gear 62 at a predetermined point inthe downward movement of the rack bar. During theA continued downward movement of the bar under the action of the bail 48, the gear |52 lis actuated. to accumulate the number., corresponding to the numeral key depressed, in the number wheels of the totalizer mechanism of the column register. After the rack bar 4B is engaged with the gear 62, and the rack bar continues its downward movement, the pin 66 engages the rear edge of the cam plate 18 which forms a guide for the rack and, as substantially the end of the downward movement of the rack, the pin engages the projecting end of the lever 68. By the engagement of the pin with the lever, the lever is swung downwardly slightly and the pin is deflected forwardly into the recess in the leverby the contacting edge of the lever which is inclined to a slight degree to the direction of downward movement of the pin, thereby again locating the rack bar in its intermediate position.

The cam plate '|18v and the guide plate |04 diler in size and contour for each of the several actuator racks. The position of the channel |06 or the position of the upper inclined edge of the cam plate 1 8 determines the point in the downward movement of the rack bar at which the rack bar is engaged with the gear B2 to actuate the totalized wheels of a register and this determines the extent of actuation of said wheels and the number which is entered therein.

The differential mechanisms for actuating the gears 62 corresponding to the actuator racks for the numeral keys I and 2, differs in certain respects from the corresponding mechanisms for actuating the gears 62 for the numeral keys for the numbers from 3 to 11, inclusive. These differential mechanisms also have substantially the same construction, arrangement and mode of vmisoperations ofthe machine.

alarmas operation as the corresponding mechanisms illustrated `and described in ysaid application Serial `No. 281,772. VIn each of these mechanisms each rackll is disengaged from the iiuted shaft 64 Iat a predetermined point in the upward movement of the rack, diiering infthecaseV of each rack, and the correponding gear 62 vis actuated at `thebeginning of the downward movement of ther-ack. Thusfthe diiferential movement ofthe respective racks is produced by disengaging the rack `from the fluted shaft 64 with the-racks in differential positions. In this case also', the upward movement of the racks is produced by the rotation of the fluted shaft 64 land the downward-movement is produced by the downward movement of lthe bail underv the influence of the bail lactuating spring as inthe case ofthe raeks for entering the numbers from v3 to 11, inclusive.

The-machine is provided with meansfor locking the ty-pe baractuating mechanisms out Aof operation under various conditions to prevent Since the differential mechanisms for actuating the totalizer wheels of the register are thrown into operation by the numeral type bar mechanisms, the locking of the type bar mechanisms out of `operation will also lock out of operation the differential mecha nisms.

The locking mechanism comprises a locking bail |08 consisting of a platel extending yacross the type carriage and arranged to'be engaged by the upper ends of the driving links 22.` This bail is mounted upon a b ar I Ill having bearing bores at its ends in Whicheneaee bearing pins I IZsecured to screws H4 threaded into the side plates 560i the machine head. The space between the inner ends f the screws H4 is sufcient to enable the locking bail to be moved longitudinally on the bearing pins H2 as shown in Figs. 6 and '7. rThe bail is normally held in its upper or unlocking position as shown in Fig. 1 in which it is not engaged by the 'upper ends of the driving links v22, 'when these links are swung forwardly by the depression o f a key to throw the type bar operating mechanisms into operation, the upward move.- ment of the bail being limited by its engagement with a stop bar H6 secured between the side,

plates 56 of the carriage. The bail is acted upon by an obliquely extending coiled spring H8 con nected at one end with an arm on a bracket H9 secured to the bar H6, and at the other to a pin projecting downwardly from the bar H0, which tends to swing the bail downwardly into locking position as shown in Figs. 5 and 9, in which its rear edge is located in position to be engaged by the upper ends of the driving link-s 22 to prevent these links from being swung for.- wardly into type bar actuating positions. With lthe bail in its normal longitudinal position, which it occupies at all times except under certain conditions whenlthe driving mechanism for the totalizer wheels of the register is in tens of shillings position with relation to the register, and the bail ranged to engage the under side of the bail as shown in Figs. 1, 8 and 9. The lever is provided with a projection for engagement with a stop |32 on the frame to limit the downward movement of the bail. The angular position of the lever |24 is controlled by a vertically movable control bar |34 formed with a slot |36 in which engages a stud |26 to guide the upper portion of the bar. The control bar |34 is formed at its upper end with a projection |35 having an inclined lower edge which is arranged to engage a roll |31 journaled on one arm of the control lever |24. The control bar extends through an opening |38 in the cover plate 14 of the machine head and the bar is supported at its lower end upon a stud |42 secured to one arm |44 of a threearmed lever |46 pivoted upon a stud |48 fixed in a bracket |50 secured to the deck plate |52 of the carriage frame. The lever |46 is acted upon by a coiled spring |54 connecting an arm |56 on said lever with an arm |58 on the bracket |50 which constantly tends to swing the lever in a clockwise direction, Fig. 2, and to draw the control bar downwardly.

The spring |54 normally holds the arm |44 of the le'ver |46 and the control bar |34 in depressed positions. With the control bar in depressed position, the engagement of the projection |35 of the bar with the roll |31 will hold the control lever |24 in the angular position shown in Figs. l, 2 and 8, and the control lever will hold the locking bail |08 in elevated or unlocking position. Upon the elevation of the control bar |34, the upward movement of the projection |35 on the bar allows the control lever |24 to swing in a counterclockwise direction on the stud |26 into the position shown in Fig. 9 and the locking bail is then swung downwardly into locking position as shown in said gure by the action of the spring ||8.

The control bar |34 is actuated to allow the locking bail to move downwardly into locking position under various conditions as shown and described in applicants Patent No. 2,358,263, dated September 12, 1944, mechanism such as disclosed in said application being preferably provided for actuating and controlling the bar.

When the master wheel 36 is brought, by the movement of the type carriage, into the tens of shillings position with relation to the totalizer wheels of the register 30, the only digit which can properly be entered in the register and printed on the work sheet is 1. To prevent the differential actuators and type bar operating mechanisms for other numbers from being thrown into operation with the master wheel in this position and consequent misoperation of the machine, all of the driving links 22 for the number entering and type bar mechanisms except that for the number "1 mechanism are locked from forward movement suicient to engage the corresponding pawls with the iluted shaft at this time by the locking bail |08. The driving link 22 for the space bar mechanism is also-left unlocked at this time to enable letter spacing movement to be given to the carriage. For identication, the driving links respectively for the space bar and number 1" mechanisms are indicated at 22a and 22h. To this end the control bar |34. is moved upwardly upon the movement of master wheel 36 into tens of shillings position with relation to the register to allow the locking bail to move downwardly into locking position. With the locking bail in its normal longitudinal position, as shown in Fig. 6, the bail, when swung downwardly into locking position, locks the number "1 driving link 22h and the driving link 22a for the space bar mechanism out of operation. In order to enable the driving link for the number l mechanism and the driving link for the space barvmechanism to be swung forwardly into operating position at this time, the locking bail |08 is cut away at |64 and is provided with a slot |66. This cut away portion and slot are located longitudinally of the locking bail so that, when the bail is in its normal position as shown in Fig. 6, the Ycut away portion and slot are out of registration respectively with the link 22a for the space bar mechanism and the link 22b for the number 1 mechanism. When the master wheel 36 moves into the tens of shillings position with relation to the totalizer wheels of the register, the locking bail is moved longitudinally on vthe bearing pins ||2 to locate the same in the posi` tion shown in Fig. 7. This movement of the locking bail brings the cut away portion |64 and the slot |66 into registration respectively with the driving links 22a and 22h for the space bar and number -1 mechanisms so that the location of the locking bail in locking position will not lock these driving links out of operation.

The obliquely extending spring ||8 which acts longitudinally as wellA as transversely of the locking bail, normally maintains the locking bail in the longitudinal position shown in Fig. 6. The mechanism for moving the locking bail into the position shown in Fig. 7 comprises a slide |14 mounted for longitudinal movement on the bar ||6 by means of screws |16 Vengaging inslots in the slide and threaded into the bar. This slide is formed with a finger |18 projecting downwardly from the slide and engaging in the-slot |66.`

The slide is formed at one end with an opening position and at the same time the bell crankl lever |82 is swung in a clockwise direction (Fig. 2) to move the locking bail longitudinally from the position shown in Fig. 6 to the position shown in Fig. 7. The mechanism for moving the control bar |34 upwardly at this time comprises a` lever |86 pivoted at |88 on the control bar |34 and provided with a. laterally extending contact arm |90 arranged to be engaged by the forward end of an arm |92 of a lever |94 pivoted at |96 on a bracket secured to the cover plate 14. The lever |94 is provided with a rearwardly extending inclined contact projection |98 arranged to be engaged by a V-shaped cam projection 200 formed on a supporting plate 202 adjustably attached by means of screws 204 to the register 30, these screws engaging in slots in the plate 202.

When the master wheel 36moves into tens of shillings position with relation to the totalizer wheels of a register, the projection |98 on the lever |94 is engaged by the cam projection 200 on the register and the lever is swung in a counter-clockwise direction (Fig. 2). The position of the projection |90 on the lever |86 with relation to the arm |92 on the lever |94 is controlled by a manually operable state control lever 206having substantially the same construction and mode of operation as the'corresponding levershown and 56 and is connectedwlthfthe'flever `|86=by meansfv "tota1 or compute position respectively by the usual'springpressed detent lever 2|2.

When the state lcontrol lever-206 is -located in compute" position- `as shown in Fig.f8, the llever |86-is 4located `inposition to hold the projection |90 above the arm |92 of the lever |94 so that Y the projectiony will be en'gagedby said-arm during the movement of the lever |94 produced as position. The lever |86-and the-"control bar |34 will lthereby'be'lifted' to-allow the lockingbailf toswing .down into locking position: A

In order 'to actuatethe bell crank lever |82 at this `tim'eya-linkZM -(see Fig. 2) is pivoted at its uppe'rend tothe horizontally extending arm of the bell crankfand atr its lower end is formedlwith a slot 2|6 1in which engages -a pin 2|8-secured in the-arm |92 of-Tthe lever |94. The link 2|4'is normally: holding the i pin-4 2 8 engaged with the upper end oi the. slot 2 I6."- f

With this constructiomas the-lever |94 is swung in a counter-'clockwiseY direction'lFig.v 2), upon the master wheel 36 moves into tens of shillings v` yieldingly rheld -in` position lwith relation to the leverY |94bymeans of-a spring220 connecting` the link with a pinfsecured-in the lever; this spring thefmovement'r of the vmaster wheel 36 into tens of-shillingsposition'iinthe'register to allow the locking bail-to swing-:down -into locking position,l theflink--2|'4yisraised `by the pin 2|8 and the bell crank1ever|82isswungin a clockwise directionlFig; 2liV4 to move the locking bail |08 longitudinally rom-the `*position shown in Fig. 6 to the position `shown in- Fig. v'7. With the locking bailin this position,the driving links 22 will f allv be lockedl against forward movement into" operating position except ythe linkst22aand 22b forfthe space -r bar mechanism and the number lf mechanismrespectively; Thus all of the type bar mechanisms and the diierential actu-v ator mechanisms except those vfor the number -1 mechanism are Lflocked fout ofoperation `at thistime. The` type-banmechanismand they differentia-l-actuatormechanism forl theinumber 1' mechanism andescapement actuating mechanism controlledfromL thev space barvarewfree to be actuated at this time.'4

When` the-statecontrol lever 206 is adjusted lin totall or=write position,--the-lever |86 is positionedvsol-that-the projection |90fdoes not lie above the arm -|92-on the lever |94 vas shown in Fig.- 10, and'theleverl86 vand the control -bar |34-willfnotfbe-raised-to-cause movement of the locking bail downwardly into locking position upon-the movementof-the master-wheel 36 into tens vof shillingsposition-- Fig. 10 shows the state control lever-in totalwposition.

The vertical movements of the control bar|34 to cause the lockingf-bail tomove into and out -of locking Y- position produced by-the angular movement` ofn-the=1ever |44*as shown and described ing-Patent No; 2,358,263, does not Iaffect the positionof the lbell crank '|82-,vand the lockr` ing fbail is ymaintained in the i longitudinal position shown in Fig.A 6 during the movements ofthebar. y

It isv=to lbe 'notedthat `the locking =bail, when in locking fpositionf is arranged to lock-all the I' alphabet typebar mechanisms out of operation-y so thata letter may not-be typed.

Havingfexplained thenature and-object of theinvention and having yspecifically described a con-- structionfembodying theiinvention Linitspreferrecl formwhatfis claimed is: l

1. In 'a typewriting and accountingzf machine;4 x having a register,I means for driving diierentiallyf` the register, andmechanism comprising 'a lette'riI spacingAv carriage forvsupporting the register and said driving means for relative 'movement tocarry thedrivingimeans Yirtdsofandout ofthe register-`l zonel and'to-shift said driving .meansfrom der nominationto denomination of `-the register; :the i combination withsaid carriage, of i a seriesr4 of'y "selectively operable devices extending across themachine for causing `,the Avoperationfof the magisterA byl said: drivingfmeans, a locking bail extendingfY across the machine adjacent -said devices-and* movable `between unlocking position and two dif` ferentlockingpositions and so constructed-'andarranged that, in one locking-position ofthe bail, g

the bail will be locatedto be engaged by all saidw devices-to lock-thefsame frommovement to cause the operation of the register by said driving means-1 -andfth-at, in another lockin-g'positionof the bail,

the bail will bevlocated to be engaged byv -certain4` of said devices 'tolock ythefsame from'movement y to cause the operationof the register by said driving means and to leave one or more of said devices free to begiven suchmovement;V the bail being normally located in unlocking position, meansfoi supportingthe `bailior shifting movement -from unlocking -l position alternatively intothe first lockingposition or into the second locking position vand-means controlled by the carriage-foron-r` trolling the kshifting ofthe bail into one of saidV locking positions.

2. In a machine ofthe class c lescribed,Y having a -f ing-position and two -diilerent locking positions--r and so constructed and arranged that, in one lock ingvpositionogf the bail; the'bail will-bev-locatedto be lengaged byl all said-devicesto lock-the' sameA frorn =movement to ,causev the operation (2f-the"- register by ysaid driving meansI -land that,fin V another locking 4position 0i' the-bail, the bail-will-w be located to be engaged 'by certain-of said-devicestof-lock the samefrom movement Vto causethe oper-ationof there-gister by saiddrivingmmeansw and to-leave one or more ofsaid'vdevices-free'to be given such'movement; thefbail being normal-lyr located inf unlocking position; rneansior-suie-A porting .the bailfor shifting ymovementr'fror'nI un-- locking position l.alternatively into the iirst, lockingr 2 position or into the second-locking position'land-v means controlled by the' carriage for-shiftin-gf-the-` bail into the latter position, asthe carriagev is" shiftedl to locate the driving means inapredeterl mined denomination oi `the-register.

2.- Ina` typewriting fand i accounting machine,rr having a register,means fordriving differentially.' the register, andi-mechanism comprising a letter spacing carriagefor supporting thev register -andsaid'driving means -forrelative movementto Icarry thev driving-means intol and out of'lthe registerA zone and to shift Asaid` driving meansv from-edelY nomination to denomination 'of theregister;l the"i combination of a series of lselectively operablefdef vices extending across 4the machine for lcausing?- lthe operation of the register by said driving means, a locking bail extending across the machine adjacent said devices and arranged to be engaged by the same to lock the devices from movement to cause the operation of the register by said driving means, means for supporting the bail for longitudinal movement and for movement to shift a locking margin of the bail transversely of the length of the bail into and out of locking position with relation to said devices, the bail having a cutaway portion along said locking margin and means controlled by the carriage for moving the bail into locking position and for shifting the same lengthwise to locate said cutaway portion of the bail in registration with one or more of said devices to lock certain of said devices out of operation and to leave one or more of the same free to be operated.

4. In a machine of the class described, having a register, means for driving differentially the register, and mechanism comprising a letterspacing carriage for supporting the register and said driving means for relative movement to carry the driving means into and out of the register zone and to shift said driving means from denomination to denomination of the register; the com bination with said carriage, ofa series of selectively operable devices extending across the machine for causing the operation of the register by said driving means, a longitudinally movable lock` ing bail extending across the machine adjacent said devices and arranged to be engaged by the same to lock the devices from movement to cause the actuation of the register by said driving` means, means for supporting the bail for pivotal movement to carry the same into and out of locking position, said bail being constructed to lock all of said devices when in one longitudinal position and to lock certain of said devices and to leave one or more of the same unlocked when in another longitudinal position and means con trolled by the carriage for moving the bail into locking position and for shifting the same longitudinally to lock certain of said devices and to leave one or more of the devices free to be operated upon the movement of the carriage to locate the driving mechanism in a predetermined position with relation to the register.

OSCAR J. ISUNDS'].]E?.AND. 

